Improvement in windmills



2 Sheets-Sheet 2. D. LAMPSON.

WIND-MILL.l

Patented Dec. 7,1875.

"NITED STATES PATENT OFFIGE.

DANTEL LAMPSON, OF ROOKFORD, ILLINOIS, ASSIGNOR OF ONE-HALF HIS RIGHT TO MILTON POTTINGER, OF SAME PLAGE.

AIMPROVEMENT IN WlNDMILLS.

Specication forming part of Letters Patent No. 170,676, dated December 7, 1875; application led i April 16, 1875.

To all whom it may concern:

Be it known that I, DANIEL LAMPSON, of Rockford, in the county of Winnebago and Stateof Illinois, have invented a new and useful Improvement in Windmills; and I do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawings and to the letters of reference marked thereon.

Figure l is a plan or top view of my improved windmill. Fig. 2 is a vertical section through the same, and Figs. 3 and 4 lare detached views of parts hereinafter referred to.

Similar letters of reference denote correspondin g parts in all the gures where used.

The first part of my invention relates to a novel construction and arrangement of the turn-table which carries the wind-wheel, whereby the frictional resistance to the movement of the table is greatly diminished, and whereby, also, it is made self-lubricating in those parts which are in frictional contact with each other; andthe second part of my invention 'relates to a novel construction of the wind- Wheel, and to the arrangement of `means for throwing the same into and out of action, as

hereinafter explained.

The tower upon which the windmill is to be placed may be either an ordinary four-post tower, or it may be of any desired construction, and provided at its top with posts or uprights A, upon the upper ends of which is secured a strong annular bed-plate, B, provided on its upper face with an annular groove, b, and on its lower face, directly underneath said groove, with an annular rib or flange, b. Near the bottom of the groove b is arranged a series of friction-rollers, and upon these rests an annular rib or flange, c1, formed on the lower face of an annular plate or turn-table, C, placed over the ring B, and, like said ring, provided onrits upper face with a groove, c. A flange,

,02, formed on the lower face of the plate C, ts

snugly within the central opening in the ring B, which thus forms a bearing for the plate G, turning freely therein. The plate or ring O has an arm, G1, formed upon or rigidly connected with it, to which the vane C2 (broken away in the drawing) is attached in any con- Venient manner. The groove c has a series of friction-roll ers, c3, mounted in it, as shown, and

upon these a third annular plate, D, rests,

through the medium of an annular rib, d, entering the groove c. The plate D is provided with standards D', in which the windwheel shaft E has its bearings, and around the central opening in said plate a rabbet is formed to receive an annular plate, F.V Underneath the rings B and C is placed another annular plate, G, grooved on its upper face at g, and

provided with friction-rollers gl, adapting it to receive and move freely on the ribb, and connected with the plate F by means of bolts a, which pass through the rings C and G and the clamping-plate F, and clamp the several rings or plates together, as shown. The ring D is held in place by the plate F and the vertical annular flanges d and d', the one entering the groove c, as explained, and the other, d', over` rollers arranged in said grooves, serves greatlyV to diminish the friction of the parts, and to facilitate their movement relatively to each other. These friction-rollers, made oblong, substantially as shown, are placed radially to the rings, and, by preference, are mounted on shafts having xed bearings, as shown; but, if desired, they can be allowed to roll freely on the bottoms of their respective grooves. Upon the shaft E is a crank at E', to which a pitman, h, is connected, the lower end of which is provided with a sleeve, h, surrounding the tubular rod H, and forming a swiveling connection therewith. The tubular rod H, which passes through the central opening in the rings forming the turn-table, is slightly enlarged at its upper end, and made funnelshaped, and a hub or shoulder formed thereon rests on the sleeve h1, and below said sleeve the tube is provided with a collar, h2, the sleeve clasping the tube-rod between the hub and collar, and imparting a reciprocating motion to said rod. The tubular rod passes through a guiding plate or plates, G', a feather and groove at g2 preventing the rotationof the rod. The ring D has arms and standards I I' and J J formed upon or secured to it, having stud-pivots at 'i j, upon which are mounted grooved pulleys k k l'l, and cords or chains m m', connected with the vane or vane-arm G1 on opposite sides, pass, the one around the guid-.

ing-pulleys lo l, and the other around the pulleys k l', as shown, and thence down through the reciprocating tube-rod H to a point within convenient reach of the attendant, who, by

' pulling upon one or the other of said cords or chains, can vary the relation of the vane to the Wheel, for throwing the wheel more or less into the wind, or entirely o ut of action, as required. .l Y

The wind-wheel, which is keyed to the end of the-shaft E, is constructed as follows: N is a hub, provided with fixed radial spokes or larms n, to the outer ends of which a broad ring, O, is secured by bolts, rivets, or other- Wise. This ring is perforated at regular interv blades rests in notches or grooves, or against` ribs formed 0n the side of the rn'g, which, in

connection with the hook-bolts, serve to rmly grasp and hold the blades to the ring.

The pump-rod or other device or mechanism to be operated by the windmill 4may be connected with the tube-rod Hin any convenient way. v

Parts of the mill not specifically described may be constructed in any usual or preferred manner.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent as an improvement in windmills, is-

1. The turn-table carrying the Wind-Wheel and the tail or vane, consisting of two or more independently-rotating annular platesprovided with the annular grooves and the fric- -tion-rollers, arranged and operating as described.

2. The grooved annular bed-plate B, in com, bination with the annular plates C and -D, constructed, arranged, and operating substantially as and for the purpose described.l

3. The combination of the annular bed-plate B, rings C, D, and Gr, clamping-plate F, and through-bolts, all constructed and operating substantially as described.

4., The angular hook-bolts p, in combination with the ring O, for securing the oblique fanblades, substantially as described.

This specification signed and witnessed this 2d day of April, 1875.

DANIEL LAMPsoN.`

Witnesses I G. W. FORD,

B. E. HOUSE. 

